JPH0866604A - Upflow fluidized bed filter - Google Patents
Upflow fluidized bed filterInfo
- Publication number
- JPH0866604A JPH0866604A JP6239728A JP23972894A JPH0866604A JP H0866604 A JPH0866604 A JP H0866604A JP 6239728 A JP6239728 A JP 6239728A JP 23972894 A JP23972894 A JP 23972894A JP H0866604 A JPH0866604 A JP H0866604A
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- tank body
- filter
- conveyor
- filter material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、産業廃水、河川水等
の懸濁水を清澄ろ過するためのろ過装置、特にろ過と洗
浄を同時に連続して行う上向流移動床式ろ過装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtering device for clarifying suspended water such as industrial wastewater and river water, and more particularly to an upflow moving bed type filtering device for simultaneously performing continuous filtration and washing. is there.
【0002】〔従来の技術〕一般に懸濁水のろ過は、ろ
過−逆洗のバッチ操作が用いられているが、一時に多量
の逆洗水を必要とし、同時に多量の洗浄排水を出すので
設備スペースが大きく不経済であるため、ろ材の移動に
エアーリフト管を利用して、ろ過と洗浄が同時に連続し
て行える上向流移動床式ろ過装置が提案されている。[Prior Art] Generally, a batch operation of filtration-backwashing is used for filtration of suspension water, but a large amount of backwashing water is required at a time, and a large amount of washing wastewater is discharged at the same time, so equipment space is required. Since it is large and uneconomical, an upflow moving bed type filtration device has been proposed in which an air lift pipe is used for moving the filter medium and filtration and washing can be continuously performed at the same time.
【0003】図−3に示すように従来の上向流移動床式
ろ過装置においては、タンク本体の下部に原水流入管
が設置され、中央部にろ材を抜き出すエアーリフト管
▲11▼が設けられ、タンク本体の上部に洗浄部が
設置され処理水面と洗浄排水面のレベル差によりろ材を
洗浄し、ろ材を落差によりろ過層へ供給している。As shown in FIG. 3, in a conventional upward-flow moving bed filter, a raw water inflow pipe is installed in the lower part of the tank body, and an air lift pipe (11) for extracting the filter medium is installed in the central part. A cleaning unit is installed on the upper part of the tank body to clean the filter media by the level difference between the treated water surface and the cleaning drainage surface, and supply the filter media to the filtration layer by the drop.
【0004】〔発明が解決しようとする問題〕しかしな
がら従来の上向流移動床式ろ過装置によると、ろ材はタ
ンク本体下部の円錐上に絞られた位置に集められエアー
リフト管▲11▼で移送されるため、エアーリフト管の
断面積によって定められた量のろ材の抜き出ししかでき
ないか、ブロックが発生しやすくまったく抜き出せない
ことが生じ、これを解消するための操作によりろ過層の
安定を欠き、ろ過不良を招く事故や、またろ材の洗浄は
処理水面のレベル差により通水洗浄するなど十分で確実
な洗浄がされない、ろ材のろ過層への供給も落差による
ので均一的な供給ができないなどの問題があった。そこ
でこの発明の課題は、上向流ろ過において必要不可欠な
安定した圧密度を保つろ過層を確保する上向流移動床式
ろ過装置を提供することにある。[Problems to be Solved by the Invention] However, according to the conventional upward flow moving bed type filtration device, the filter medium is collected at a position constricted on the cone below the tank body and transferred by the air lift pipe (11). Therefore, it is possible to extract only the amount of filter medium determined by the cross-sectional area of the air lift pipe, or it may occur that blocks are apt to be extracted at all, and the stability of the filtration layer is lacked by the operation to eliminate this, Accidents that lead to poor filtration, and the cleaning of the filter media cannot be carried out sufficiently and reliably, such as by passing water through the level difference of the treated water surface. There was a problem. Then, the subject of this invention is providing the upflow moving bed type filtration apparatus which secures the filtration layer which keeps stable pressure density which is essential in upflow filtration.
【0005】〔課題を解決するための手段〕上記の課題
を解決するために、この発明の上向流移動床式ろ過装置
はタンク本体上部に圧密パイプを一定の勾配を有して複
数配置し、その中央部ろ材に埋設する位置にろ材供給コ
ンベアーを設置し、タンク本体側面にはろ過の壁面効果
によるショートパスを防ぐ邪マ板を設け、タンク本体下
部中央にろ材の圧密度を得る下広がりの傾斜面を備えた
邪マ板を設置し、その下面近傍にろ材抜き出しコンベア
ーを配設し、それにろ材移送コンベアーを立設し、タン
ク本体に近接して設けられた洗浄タンクに接続し、洗浄
タンク下部とタンク本体を連結したろ材供給コンベアー
を設置し、洗浄タンク下部にろ材洗浄用ノズルを配設
し、タンク本体上部に処理水を送るポンプを設置し、洗
浄用ノズルに配管接続することにより構成される。[Means for Solving the Problems] In order to solve the above-mentioned problems, the upward flow moving bed type filtration device of the present invention has a plurality of consolidation pipes arranged at an upper part of the tank body with a certain gradient. The filter medium supply conveyor is installed at a position to be embedded in the center filter medium, and a baffle plate is installed on the side of the tank body to prevent short paths due to the wall effect of filtration. Install a baffle plate with a sloped surface, install a filter material extraction conveyor near the bottom surface, set up a filter material transfer conveyor, and connect it to the cleaning tank installed close to the tank body for cleaning. A filter material supply conveyer that connects the lower part of the tank and the tank body is installed, a filter material cleaning nozzle is installed in the lower part of the cleaning tank, a pump for sending treated water is installed in the upper part of the tank body, and a pipe is connected to the cleaning nozzle. Constructed by.
【0006】〔作用〕この発明の上向流移動床式ろ過装
置によれば、ろ材は抜き出しコンベアー、移送コンベア
ー、供給コンベアーにより確実に連続して一定量移動す
ることができ、ろ材の洗浄は加圧水により洗浄ノズルで
行われるので確実かつ効率よくできる。このためろ過層
は常に安定した状態を保ち圧密パイプと邪マ板により均
一なろ過層を維持することができる。コンベアーによる
移送と圧密を配慮した構造によって、ろ材の移動量をろ
過層を安定した状態に保ちながら変化させることが可能
となった。[Operation] According to the upward moving bed filter of the present invention, the filter material can be reliably and continuously moved by the extraction conveyor, the transfer conveyor and the supply conveyor in a fixed amount, and the filter material is washed with pressurized water. Since it is performed by the cleaning nozzle, it can be performed reliably and efficiently. For this reason, the filtration layer can always be kept in a stable state and a uniform filtration layer can be maintained by the consolidation pipe and the baffle plate. With a structure that takes into account the transfer by conveyor and compaction, it is possible to change the movement amount of the filter medium while keeping the filtration layer stable.
【0007】〔実施例〕以下、この発明を具体化した一
実施例を図面に基づいて説明する。図−1、図−2に示
すように、この実施例の上向流移動床式ろ過装置におい
ては、タンク本体が下部は半円状で角形に形成され、
上部は蓋板があり、処理水出口管▲12▼が立設されて
いる。タンク本体下部に原水流入管が固設されてい
る。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1 and FIG. 2, in the upward flow moving bed type filtration device of this embodiment, the tank body is formed in a square shape with a lower semi-circular shape,
The upper part has a lid plate, and the treated water outlet pipe (12) is erected. A raw water inflow pipe is fixedly installed at the bottom of the tank body.
【0008】タンク本体の上部には6本の圧密パイプ
▲10▼が水平縦方向に中心より勾配をつけて、ろ材供
給コンベアーより上方に並行に設置されている。またタ
ンク本体の下部に下広がりの邪マ板が縦方向に固定
され、その下にろ材引き抜きコンベアーが固設されて
いる。タンク本体の側面に並立し、ろ材引き抜きコン
ベアーに直角方向に接続されたろ材移送コンベアー
は上部でろ材洗浄タンクに接続されている。ろ材洗浄
タンクにはろ材洗浄ノズル▲13▼が固設され、それ
はタンク本体の上部に設置された洗浄ポンプに接続
されている。ろ材洗浄タンクとタンク本体の上部を
貫通、接続したろ材供給コンベアーが固設され、それ
はタンク本体上部のろ材供給部〔2〕へろ材に埋設した
位置で圧密パイプ▲10▼より下方に設置されている。
ろ材供給コンベアーの側面にはろ材供給用の穴が適当
に配置されており、ろ材の供給を均一にしている。On the upper part of the tank body, six compaction pipes (10) are installed in parallel above the filter medium supply conveyor with a gradient in the horizontal and vertical direction from the center. In addition, a baffle plate that spreads downward is fixed to the lower part of the tank body in the vertical direction, and a filter medium pulling conveyor is fixedly installed under the baffle plate. A filter material transfer conveyor, which is juxtaposed to the side surface of the tank body and is connected to the filter material extraction conveyor at a right angle, is connected to the filter material cleaning tank at the top. A filter material cleaning nozzle (13) is fixedly installed in the filter material cleaning tank, and it is connected to a cleaning pump installed in the upper part of the tank body. A filter medium supply conveyor, which penetrates through and is connected to the filter medium cleaning tank and the upper part of the tank body, is fixedly installed. It is installed below the consolidation pipe (10) at the position where it is embedded in the filter medium supply part [2] filter medium at the upper part of the tank body. There is.
The filter medium supply holes are appropriately arranged on the side surface of the filter medium supply conveyor to uniformly supply the filter medium.
【0009】上記のように構成したこの実施例の上向流
移動床式ろ過装置においては、原水流入管より圧送さ
れた懸濁水をろ過層〔3〕で上向流ろ過を行う。このと
き上向流によって生じる圧力でろ過層がふくらむ現象を
圧密パイプ▲10▼は減少させることができる。ろ過さ
れた処理水は〔1〕に貯留され処理水出口管▲12▼よ
り回収される。また処理水の1部はろ材洗浄ポンプで
ろ材の洗浄に用いられる。洗浄排水はろ材洗浄タンク
の側面に設けられたノズルより排出される。In the upward flow moving bed type filtration device of this embodiment constructed as described above, the suspension water pressure-fed from the raw water inflow pipe is subjected to upward flow filtration in the filtration layer [3]. At this time, the consolidation pipe (10) can reduce the phenomenon that the filtration layer swells due to the pressure generated by the upward flow. The filtered treated water is stored in [1] and collected from the treated water outlet pipe (12). Further, a part of the treated water is used for cleaning the filter medium by a filter medium cleaning pump. The cleaning waste water is discharged from a nozzle provided on the side surface of the filter material cleaning tank.
【0010】一方、懸濁物を補集したろ材の移送はタン
ク本体上部のろ材供給コンベアーにより供給され
る。洗浄されたろ材の圧力により、邪マ板を介してろ
材引き抜きコンベアーで安定して抜き出される。ま
た、ろ材移送コンベアーでろ材洗浄タンクへ送ら
れ、ろ材洗浄タンクで処理水により効率より効果的に
洗浄される。洗浄によって再生されたろ材はろ材洗浄タ
ンク下部よりろ材供給部〔2〕へ圧送されるので均一
なろ過層〔3〕を形成することができる。また、ろ材洗
浄タンクに設けた洗浄排水出口ノズルは処理水出口管
より低くしてあるので、洗浄排水が処理水〔1〕に混入
することはない。したがって、ろ材の引き抜き、洗浄、
供給をろ過性能を損なうことなく定量的に移動させるこ
とができる。また、ろ材の移動にコンベアーを使うこと
により懸濁水の懸濁物濃度や懸濁水量の増減に対応して
ろ材の移動量を調整することが容易である。On the other hand, the transfer of the filter medium which has collected the suspension is supplied by the filter medium supply conveyor above the tank body. Due to the pressure of the washed filter medium, the filter medium is stably extracted by the filter medium extracting conveyor through the baffle plate. Further, it is sent to the filter material cleaning tank by the filter material transfer conveyor, and is efficiently cleaned with the treated water in the filter material cleaning tank. Since the filter medium regenerated by cleaning is pressure-fed from the lower part of the filter medium cleaning tank to the filter medium supply section [2], a uniform filtration layer [3] can be formed. Further, since the cleaning drain outlet nozzle provided in the filter material cleaning tank is lower than the treated water outlet pipe, the cleaning drain does not mix with the treated water [1]. Therefore, the filter medium is pulled out, washed,
The feed can be moved quantitatively without compromising filtration performance. Further, by using a conveyor for moving the filter medium, it is easy to adjust the moving amount of the filter medium according to the increase or decrease in the concentration of suspended solids in the suspended water or the amount of suspended water.
【0011】なお、この発明は上記実施例に限定される
ものではなく、例えばタンク本体の底部は円錐形状に
したり、圧密パイプ▲10▼は角状であり、複数本であ
ることなど本発明の趣旨を逸脱しない範囲で各部の形状
並びに構成を適宜に変更して具体化することも可能であ
る。The present invention is not limited to the above-described embodiment, and for example, the bottom portion of the tank main body has a conical shape, the consolidation pipe (10) has an angular shape, and there are a plurality of pipes. The shapes and configurations of the respective parts may be appropriately modified and embodied without departing from the spirit of the invention.
【0012】〔発明の効果〕以上に詳述したように、こ
の発明によれば、ろ材の移動をコンベアーにより行い、
圧密パイプ、邪マ板の効果的な配置が発明されたので、
安定したろ過に必要な圧密度を維持したろ過層を常時形
成することができるというすぐれた効果を奏する。[Effect of the Invention] As described in detail above, according to the present invention, the movement of the filter medium is performed by the conveyor,
Since the effective arrangement of compaction pipes and baffles was invented,
It has an excellent effect that a filtration layer maintaining a pressure density necessary for stable filtration can be constantly formed.
【図1】この発明の一実施例を示す上向流移動床式ろ過
装置の横断面図である。FIG. 1 is a cross-sectional view of an upflow moving bed type filtration device showing an embodiment of the present invention.
【図2】この発明の一実施例を示す上向流移動床式ろ過
装置の縦断面図である。FIG. 2 is a vertical cross-sectional view of an upflow moving bed type filtration device showing an embodiment of the present invention.
【図3】従来の上向流移動床式ろ過装置の断面図であ
る。FIG. 3 is a cross-sectional view of a conventional upflow moving bed type filtration device.
【符号の説明】 …タンク …原水入口管 …
原水邪マ板 …邪マ板 …ろ材抜き出しコンベアー…
ろ材洗浄タンク …ろ材移送コンベアー…ろ材洗浄ポンフ。 …
ろ材供給ポンプ ▲10▼…圧密パイプ ▲11▼…エアリフト管
▲12▼…処理水出口管 ▲13▼…ろ材洗浄ノズル[Explanation of symbols] ... Tank ... Raw water inlet pipe ...
Raw water Baffle plate ... Baffle plate ... Filter material extraction conveyor ...
Filter media cleaning tank ... Filter media transfer conveyor ... Filter media cleaning pond. …
Filter material supply pump ▲ 10 ▼… Consolidation pipe ▲ 11 ▼… Air lift pipe
▲ 12 ▼… Treatment water outlet pipe ▲ 13 ▼… Filter material cleaning nozzle
Claims (1)
のついた原水流入管を設け、ろ過精度を上げるためろ
材の圧密度を保つ圧密パイプ▲10▼を設置し、ろ材の
移動に供なうろ材の圧密度の変動を小さくするための邪
マ板を下部に設け、ろ材を抜き出すろ材抜出しコンベ
アーを設置し、抜き出したろ材を上部のろ材洗浄タン
クへ移送するろ材移送コンベアーを設置し、ろ材洗
浄ポンプをタンク本体に接続し、洗浄ノズルを設置
した洗浄タンクからタンク本体上部へろ材供給する
ろ材供給コンベアーを設けたことを特長とする上向流
移動床式ろ過装置。1. A tank main body filled with a filter medium is provided with a raw water inflow pipe with a baffle plate, and a consolidation pipe (10) for maintaining the pressure density of the filter medium is installed in order to improve the filtration accuracy. A baffle plate to reduce fluctuations in the pressure density of scale material is installed at the bottom, a filter medium extraction conveyor is installed to extract the filter material, and a filter material transfer conveyor is installed to transfer the extracted filter material to the filter material cleaning tank at the top. An upflow moving bed type filtration device characterized in that a cleaning pump is connected to the tank body, and a filter material supply conveyor that supplies the filter material to the upper part of the tank body from the cleaning tank equipped with a cleaning nozzle is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6239728A JPH0866604A (en) | 1994-08-26 | 1994-08-26 | Upflow fluidized bed filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6239728A JPH0866604A (en) | 1994-08-26 | 1994-08-26 | Upflow fluidized bed filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0866604A true JPH0866604A (en) | 1996-03-12 |
Family
ID=17049051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6239728A Pending JPH0866604A (en) | 1994-08-26 | 1994-08-26 | Upflow fluidized bed filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0866604A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008142833A1 (en) * | 2007-05-17 | 2008-11-27 | Nihon Genryo Co., Ltd. | External device for cleaning filtration material and adapted for application to filtration device |
AU2013201188B2 (en) * | 2007-05-17 | 2016-03-10 | Nihon Genryo Co Ltd | Method for cleaning particulate filtration material in a system and system |
-
1994
- 1994-08-26 JP JP6239728A patent/JPH0866604A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008142833A1 (en) * | 2007-05-17 | 2008-11-27 | Nihon Genryo Co., Ltd. | External device for cleaning filtration material and adapted for application to filtration device |
JP2008284457A (en) * | 2007-05-17 | 2008-11-27 | Nippon Genryo Kk | External filter medium-washing device for filtering device |
US8695613B2 (en) | 2007-05-17 | 2014-04-15 | Nihon Genryo Co., Ltd. | External device for cleaning filtration material and adapted for application to filtration device |
AU2013201188B2 (en) * | 2007-05-17 | 2016-03-10 | Nihon Genryo Co Ltd | Method for cleaning particulate filtration material in a system and system |
US9409103B2 (en) | 2007-05-17 | 2016-08-09 | Nihon Genryo Co., Ltd. | External device for cleaning filtration material and adapted for application to filtration device |
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